Actinotaenium
Actinotaenium is a genus of green algae, specifically of the Desmidiaceae. It is a freshwater genus, typically found in the benthos of acidic, oligotrophic lakes or Sphagnum bogs. It has a cosmopolitan distribution.
Actinotaenium consists of solitary cells with two halves, called semicells; cells have a central constriction called an isthmus where the two semicells are joined. Cells are globose, ovoid, cylindrical or pyramidal when viewed from the side, but circular when viewed from the poles. The cell walls are covered in ornamentation such as fine pores, punctae or scrobiculae (pits); the distribution of ornamentation varies by species. Each semicell has a single chloroplast, which is stellate in cross-section and often with complex lobes.
26 branches of this genus, most-observed first
Actinotaenium diplosporum
speciesActinotaenium diplosporum
Actinotaenium cucurbita
speciesActinotaenium cucurbita
Actinotaenium globosum
speciesActinotaenium globosum
Actinotaenium curtum
speciesActinotaenium curtum
Actinotaenium turgidum
speciesActinotaenium turgidum
Actinotaenium cucurbitinum
speciesActinotaenium cucurbitinum
Actinotaenium rufescens
speciesActinotaenium rufescens
Actinotaenium capax
speciesActinotaenium capax
Actinotaenium crassiusculum
speciesActinotaenium crassiusculum
Actinotaenium clevei
speciesActinotaenium clevei
Actinotaenium wollei
speciesActinotaenium wollei
Actinotaenium silvae-nigrae
speciesActinotaenium silvae-nigrae
Actinotaenium angulatum
speciesActinotaenium angulatum
Actinotaenium cruciferum
speciesActinotaenium cruciferum
Actinotaenium perminutum
speciesActinotaenium perminutum
Actinotaenium subglobosum
speciesActinotaenium subglobosum
Actinotaenium borgeanum
speciesActinotaenium borgeanum
Actinotaenium colpopelta
speciesActinotaenium colpopelta
Actinotaenium didymocarpum
speciesActinotaenium didymocarpum
Actinotaenium phymatosporum
speciesActinotaenium phymatosporum
Actinotaenium truncatum
speciesActinotaenium truncatum
Actinotaenium obcuneatum
speciesActinotaenium obcuneatum
Actinotaenium subtile
speciesActinotaenium subtile
Actinotaenium pinicola
speciesActinotaenium pinicola
Actinotaenium palangula
speciesActinotaenium palangula
Actinotaenium spinospermum
speciesActinotaenium spinospermum
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Actinotaenium in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 494077.